... 5hoursLast time:2~3hoursMaterial:ABS Plastic, Wooden BoxFunction:Support SD card, USB, FM, can connect to ... Size:13*13*14 cmProduct Weight:834gIntroduction:1`Support SD card, USB, connecting your MP3,CD, ... ,GPS,PSP,mobile phone, notebook computer.2`Support FM Radio receive External battery holder, easy ... Weight:27KGGross Weight: 28KG Mini Speaker RX-I5 support iphone, nokia, blackbarry, MP3,MP4,laptop,PSP ...